Home / 144,831.09-199,878.70-80,306.73

Finding the Fourth Proportional to 144,831.09, 199,878.70 and 80,306.73

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Solution

The fourth proportional to 144,831.09, 199,878.70 and 80,306.73 is: 110,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,831.09 : 199,878.70 = 80,306.73 : x
  2. Step 2: Convert to fraction form
    144,831.09/199,878.70 = 80,306.73/x
  3. Step 3: Cross multiply
    144,831.09x = 199,878.70 × 80,306.73
  4. Step 4: Simplify right side
    144,831.09x = 16,051,604,793.65
  5. Step 5: Solve for x
    x = 16,051,604,793.65/144,831.09
  6. Step 6: Final answer
    x = 110,829.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.